kathleen sebelius, the person in charge of the botched health care rollout, is testifying on capitol hill today. she's expected to blame the contractors who built the problem-plagued website. yesterday, for the first time, the obama administration issued a direct apology for healthcare.gov. >> i want to apologize to you that the website has not worked as well as it should. >> she was also grilled about a wave of cancellation notices hitting small businesses and individuals who buy their own insurance. she said people who get those notices will be able to find better replacement plans on the web site and, in some cases, for cheaper. >>> on the other side of the capitol, another high-profile hearing. the senate judiciary committee heard testimony on the state's controversial stand your ground laws. sabrina fulton, trayvon martin's mother, told the panel the laws don't work and their purpose should be clarified. she said florida's stand your ground law emboldened george zimmerman to kill her son, when was not committing any crimes. >>> in northern california more than 1,000 people march